Gate and chute for coal or ore pockets



PATENTED FEB; 16, 1904.

I G. L. HOLMES. GATE AND GHUTB FOR GOAL 0R ORE POGKETS.

APPLIOATIQN FILED MAR. 24, 1902.

2 SHEETS-SHEET 1.

N0 MODEL.

THE NORRIS PETERS 0o. vncm-uma. WAEHINGION, n. I

No. 752,555. r PATENTED FEB. 16, 1904. G. L, HOLMES.

GATE AND GHUTB FOR GOAL OBxORE POGKETS.

APPLICATION FILED MAR. 24, 1902.

n. WAQmNG D c T wanms warms co. FnOTChr UNITED; STATES GEORGE LEWIS"HOLMES,

Patented February 16, 1904.

or CHICAGO, ILLINOIS.-

GATE AND CHUTE FOR COAL OR ORE POCKETS.'

srnoiricn'rron forming part of Letters PatentNo. 752,555, dated.February 16, 1904.

Application filedMarch 24, 1902.

To all whom, it may concern:

Be it known that I, GEORGE LEWIS HOLMES a citizen of the United States,residing atChicago, in the county of Cook and State of Illinois, haveinvented a certain new and'useful Improvement in Gates and Chutes forCoal or Ore Pockets, of which the following is a specification.

My invention relates to gates and chutes for coal or ore pockets, andhas for its object to provide certain new and useful improvements.

Figure 1 is a frontview. Fig. 2 is a crosssection on line 2 2, Fig. 1.-Fig. 3 is a horizontal section near the lower part, Fig. 2.

Like parts are indicated by the same letter in all the figures.

A is the bin or pocket, which consists, for example, of the siding andthe vertical beams B B and other necessary and associated parts. Thispocket is arranged with an opening C, preferably lined, as indicated atC, and there is an inclined way C leading into and through the opening.The lower end of this inclined way is properly supported on thecross-beams C and C. The opening on the exterior side is provided withan outwardly projecting downwardly-opening hood composed of the plates DD, firmly fixed in position.

E is a gate having the arc-shaped cut-off portion E, the flat chuteportion E the end frame-pieces E E, and the curved portion E, whichpasses around the shaft, and it is pivoted on the shaft E, which issupported in the bearings E". On the outer end of this shaft E is an armF, attached tothe. link'F, which is in turn pivoted at F to the shortarm F which at one end 'is pivoted at F to the side of thehopper-pocket. F" is the other end of said arm, pivoted at F to thelinkF and suspended midway by the loop F, suspended from the rope F, whichruns over a pulley at E", which is mounted in thebracket F, and on theother end of this rope is suspended the coun terbalance-weight F". Fromthe outer extremity of the arm portion F depends the rod G, providedwith the cross-bars G G. These parts all stand normally in the positionindicated. By pulling down on the rod G the arm 5 F F tends to assume ahorizontal position end of the rope carries the weight J Serial No.99,648. (No model.)

and is lowered at F thus lowering the-link F and moving the arm F androcking the shaft E so as to bring the gate into' the position indicatedin dotted lines. The fiat chutelike portion E of the gate E is such thatthe material escaping overthe top of the gate E is carried away on thechute-like incline E J is an outer chute open at the top, the sides ofwhich overlap the sides of the hood D when the pipe J is raised. It isprovided below with the chain J and above with the rope J passing overthe pulley J on the bracket J of the pocket-frame. The otllier Tiischain and rope are preferably secured to the outer extremity of thechute J, which is in the form of a downwardly-curved portion J 6 and isprovided with the handbar J. The upper end of the chute or spout isjournaled on the bushing J which projects from the bearing E and throughwhich passes the shaft E The spout is thus not directly supported on theshaft.

The parts are shown in the position which they would occupy when thesupply of coal has been cut off and the last portion of that supply hasjust passed onto the locomotive. The next step will be to raise thechute J in the position shown in dotted lines, which is done by raisingit up by means of the handbar J In this position the gate operates as astop to prevent the further flow of the material through the hood andchute; but the last material, as the flow is being interrupted, insteadof falling ofl the top of the gate slides down the incline E and outthrough the chute J. Theparts are manipulated respectively by theweights and their connections. When it is desired to furnish a supply ofcoal to the locomotive by means of the chain J, the chute should bedrawn down against the weight J 5 in the position shown in full lines.Then by manipulating the rod G by either of the bars G G the gate willbe thrown down intothe position shown in dotted lines, as indicatedabove, this action-being counterbalanc'ed by the weight F The materialcan now How out over the incline E down the chute J. When a sufiicientsupply has been obtained, the rod G may be moved up wardly, whereuponthe parts associated with the gate will assume the position shown infull lines and the stream of material will be cut ofl. It will beobserved that the parts are so located that this cut-ofl? takes placenotdi-w rectly at right angles to the flow, but in the direction of theflow, so that the danger of crushing the material between the outerextremity of the gate and the hood is minimized. The gate itself is opennear this point, as indicated in Fig. 1, so as to reduce the danger ofsuch crushing action. After the last of the material has escaped thechute J can be thrown up into the position indicated in Fig. 2

in dotted lines. It will also be observed that in my construction thegate is supported on a shaft or rod and not on mere light side pins.This is important as obviating the giving and moving of the parts, whichso often results in binding. It will also be seen that the gate islocated so that its supporting-point is beyond it easy of access foradjustment or repairs. By placing the gate-supports in the positionIhave shown it is possible .to use a rod, because it is placed below theline of travel of the material, while under other conditions it wouldimpede the flow. The spout not being supported on the shaft, but on thebushings associated therewith, is in much less danger of causing bindingor cramping of the parts. It is desirable to have the gate as close tothe pocket as possible, and by my arrangement, having the gate work onthe arc of a circle it cannot enter the edge of the opening, and thusthere is left room for a substantial cross-brace in the frame of thepocket and also for the operation of the movable gate, substantially orlargely within the line of such pocket-frame. The lower hooded end ofthe spout prevents the coal from being thrown out at this point.

r I claim In a gate and chute for coal or ore pockets, the combinationof a gate to cut off the flow of coal with a transverse rod below thebottom of the discharge-way, said gate pivoted on such rod, and an outerspout pivoted concellltric with but on pivots independent of the roGEORGE LEWIS HOLMES. Witnesses:

HOMER L. KRAFT, EDWARD T. WRAY.

